mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-16 04:20:32 +01:00
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/* Although this is not an exported header file, code which uses elliptic
|
|
* curve point operations will need to include it. */
|
|
|
|
#ifndef __ecl_h_
|
|
#define __ecl_h_
|
|
|
|
#include "ecl-exp.h"
|
|
#include "mpi.h"
|
|
|
|
struct ECGroupStr;
|
|
typedef struct ECGroupStr ECGroup;
|
|
|
|
/* Construct ECGroup from hexadecimal representations of parameters. */
|
|
ECGroup *ECGroup_fromHex(const ECCurveParams * params);
|
|
|
|
/* Construct ECGroup from named parameters. */
|
|
ECGroup *ECGroup_fromName(const ECCurveName name);
|
|
|
|
/* Free an allocated ECGroup. */
|
|
void ECGroup_free(ECGroup *group);
|
|
|
|
/* Construct ECCurveParams from an ECCurveName */
|
|
ECCurveParams *EC_GetNamedCurveParams(const ECCurveName name);
|
|
|
|
/* Duplicates an ECCurveParams */
|
|
ECCurveParams *ECCurveParams_dup(const ECCurveParams * params);
|
|
|
|
/* Free an allocated ECCurveParams */
|
|
void EC_FreeCurveParams(ECCurveParams * params);
|
|
|
|
/* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k * P(x,
|
|
* y). If x, y = NULL, then P is assumed to be the generator (base point)
|
|
* of the group of points on the elliptic curve. Input and output values
|
|
* are assumed to be NOT field-encoded. */
|
|
mp_err ECPoint_mul(const ECGroup *group, const mp_int *k, const mp_int *px,
|
|
const mp_int *py, mp_int *qx, mp_int *qy);
|
|
|
|
/* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k1 * G +
|
|
* k2 * P(x, y), where G is the generator (base point) of the group of
|
|
* points on the elliptic curve. Input and output values are assumed to
|
|
* be NOT field-encoded. */
|
|
mp_err ECPoints_mul(const ECGroup *group, const mp_int *k1,
|
|
const mp_int *k2, const mp_int *px, const mp_int *py,
|
|
mp_int *qx, mp_int *qy);
|
|
|
|
/* Validates an EC public key as described in Section 5.2.2 of X9.62.
|
|
* Returns MP_YES if the public key is valid, MP_NO if the public key
|
|
* is invalid, or an error code if the validation could not be
|
|
* performed. */
|
|
mp_err ECPoint_validate(const ECGroup *group, const mp_int *px, const
|
|
mp_int *py);
|
|
|
|
#endif /* __ecl_h_ */
|